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MV & LV SERIES ENGINEERED DRY CHEMICAL FIRE EXTINGUISHING SYSTEM
OPERATION, DESIGN, & SERVICE MANUAL
REV C
Document # DOC324
Issued: April 26, 2018
Revised: March 22, 2022
UL FILE # EX27541
3.2 General Purpose and Industrial Hazards
Typically, general purpose and industrial hazards are protected by either total flooding an enclosure with dry
chemical or locally applying the dry chemical to the hazard directly. Depending on the type of hazard being
protected the following nozzles can be used in applications that meet the classification for general purpose
and industrial hazards.
e type of each nozzle along with specific characteristics, design locations and spacing requirements are
provided in the sections below.
Section 3 System Design
Table 3.2 Industrial Usage Nozzle Application and Minimum Flow Rates
Nozzle Type PN Application
Minimum Flowrate Minimum
Discharge Time
(sec)¹
Minimum Agent
Discharged
Per Nozzle
lb/s kg/s lbs kg
JSH-360 Nozzle
See Table
2.6.2
Work Area 5.26 2.39 9.5 55.0 24.9
JSH-180 Nozzle
See Table
2.6.2
Work Area 5.26 2.39 9.5 55.0 24.9
TF Nozzle 16172
Work Area - Up to 12' (3048
mm) Height
2.09 0.95 8.1 16.93 7.70
TF Nozzle 16172
Work Area - 12' to 20' (3048
mm to 6096 mm) Height
2.37 1.08 7.3 17.3 7.88
TFP Nozzle 17809
Module Perimeter Work
Area Coverage, ONLY
2.5 1.13 8.1 20.25 9.15
LAOH Nozzle 16216 Local Application Overhead
1.5 /
2.25²
0.69 /
1.02²
8.0
12.0 /
18.0³
5.45 /
8.16³
TS Nozzle 16170 Local Application Tank Side 1.5 0.68 7.1 10.65 4.83
SCR Nozzle 16192
Screening the opening of
the Work Area
2.12 0.96 4.2 8.9 4.03
D/P Nozzle 16190
Duct; Plenum
(multiple nozzle system)
1.76 0.80 5.3 9.33 4.24
D/P Nozzle 16190
Duct; Plenum
(single nozzle system)
2.06 0.93 8.3 17.10 7.72
3-Way Nozzle 16174
Plenum
(multiple nozzle system)
1.9 0.86 5.5 10.45 4.73
3-Way Nozzle 16174
Plenum
(single nozzle system)
2.155 0.98 8.0 17.28 7.84
² Due to potential splashing, LAOH Nozzles as used for Local Application Overhead protection have a maximum
flowrate in addition to a minimum flowrate. e smaller value listed above is the minimum and the large value is
the maximum
¹ Maximum discharge time is 30 seconds as required by NFPA 17. Actual discharge time to be determined by Janus
Design Suite software
³ Due to potential splashing, LAOH Nozzles as used for Local Application Overhead protection have a maximum
amount of agent discharged in addition to a minimum amount of agent discharged. e smaller value listed above
is the minimum and the large value is the maximum
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